This is a play off of Yezhov's name- 'to hold with an iron grip', 'ezhovi rukavitsi' (literally 'with hedgehog mittens'), became a popular saying during his tenure as NKVD chief. Here, Yezhov crushes the 'Zinoviest-Trotskyist group', personified as a Nazi-backed snake. The text beneath reads: "Long live the People's Commissar! A True Son of Our Great Motherland! Long Live The Stalinist People's Commissar, Nikolai Ivanovich Yezhov!"